Dandy-roll and other like devices such as cylinder-molds, &amp;c.



W. K. TROTIVIAN.

DANDY ROLL AND OTHER LIKE DEVICES SUCH AS CYLINDER MDLDS, &c.

a APPLICATION FILED JUNE 19. I915.

Patented Oct. 30, I917.

. Hag

IN-vENT oR TED s'ra'rus Parana nurse.

WALTER KNOWLES'TROTMAN, or noLYo E,massaonusnrrsnss enon or ONE-HALF TO enemas nann moons, onnnw YORK, n. Y.

DANDY-ROLL AND defies mKn DEVICES siren AS cYLINDEBrMoL Ds, a

' Specification of Letters Patent.

Patented Oct. so. rare.

Application filed June 19, 1915. Serial No. 35,159.

T 0 aZZ whom it may concern:

Be it known that I, WALTER KNOWLES TRorimN, a subject of the King of England, at present a resident of Holyoke, in the county of Hampden and State of Massachusetts, have invented new and useful Improvements in Dandy-Rolls and other like Devices such as Cylinder-Molds, -&c., of which the following is a specification.

My invention relates to dandy rolls, cylinder-molds, etc., in which the outer covering may be'mounted upon the frame without the common sewing operation and in which the same may be tightly strained and drawn into the desired fixed position and to mechanism wherein separate and independent sections may be mounted in place.

I accomplish the objects of' my invention by' the construction herein-shown and described.

In the accompanying drawings in which like letters of reference indicate like parts,

Figure 1 is a perspective view of a section of a dandy roll' having a part of one head; the wire frame and the cover broken away, thus disclosing the interior mechanism em:

ployed for drawing the edges of the cover into place. I

Fig. 2 is a detached. View of a part of such mechanism on a larger scale.

. Fig. 3 is a plan view of the angularly arranged tightening-block and a part of its operating mechanism, and

Figs. 4 and 5 are edge views of the detachable clip provided cover portions.

The construction and operation'of my device will be readily understood on reference to the drawings in connection herewith.

The dandy roll frame as illustrated in this application comprises a suitable shaft a'having heads 72 and spiders 0, upon the peripheries of which are mounted the parallel rods d and the rings or helixly wound wires 6. The cover f formed of fine woven wire has secured to its meeting edges strips 9, which strips have depending clips k adapted to engage the wires e. A line or set of blocks or strips '5 areipreferably permanently secured to the frame wires e so that the strips 5 and depending clips it will abut against the strips 1'. A rock shaft j is mounted in suitable bearings and has fixed to it a block or member is, the outer edge of which bears against the strip 9 and against the clips it so that if the rock shaft isis turned or rocked in one direction the edge with which the block ]b' is in contact is carried toward the adjacent edge of the cover and held firmly in place.

lVhenever it is desired to loosen and re.

move the cover, the rock shaft j is rotated a short distance in the opposite direction, thus loosening and relieving from strain the edge to which the strip 9 is attached; so that the cover may be readily removed and another a which block has movement in the frame 0 so that if the block be movedin' one direction the frame will be carried to the right and if moved in the opposite direction the frame will be moved to the left. The frame 0 Ms anti-friction rolls ;0 and is provided with a projection 'r the latter being in engagement with the rock shaft so that -as the frame 0 is moved by reason of moving the block n the rock shaft j will be rotated in a direction dependent'upon the direction of the movement of the block I). and thus the cover tightened on the frame or loosened for removal therefrom. For the purposes of accurate adjustment the rod Z is threaded adjacent its connectionwith the block n so that it may beadjusted and permanently fixed in the ,desired position and its necessary field of operation controlled by the crank provided member m. A most convenient employment ofnuts s.

tions instead of one continuous piece, thenmeans ofarranging for such adjustment between, the rod Z and block it comprises the' To avoid friction in. 'the movement of. the block at in the frame '0 v each section should-be provided' with an in-- dependent rock shaft and independent mech-' anism for operating the same.

lVith this construction it will readily be seen that covers either continuous orin separate sectionsmay be mounted upona dandy roll or cylinder frame without the expensive and tedious method of sewing the same permanently in place heretofore employed, and that the cover portions may be easily mounted in place and removed therefrom without the delay heretofore required and that "a what I claim as new and desire tosecure 1 by Letters Patent 1s:

1. In a dandy roll or cylinder roll a suitable frame, a cover section reinforced at its edges by having flat metal strips secured thereto, means to engage the edge portions of the cover and drawing the same toward each other by a circumferential movement and means for operating the mechanism for so drawing the edges together whereby the covers are held in'place or may be removed at will.

2, The combination in a dandyroll of a suitable supporting shaft, a suitable frame mounted thereon, a rock shaft mounted in the frame, a cover having engaging means at its meeting edges, a member mounted on the rock shaft to engage the cover edge por- 'tions and draw them toward each other, and means comprising a longitudinally moving member to rotate the rock shaft substantially as shown.- 7

of said block to the rock shaft, substantially as shown. a

I. In a dandy roll a suitable frame, a removable cover, a frame 0 having slidingly mounted therein a block. n, a threaded member engaging the block a and adapted to move the same longitudinally of the dandy roll, a rock shaft 7', operative connection between. the frame 0 and rock shaft 7' and engaging means between the rock shaft 9' and the edge of the cover, substantially as shown..

5. A roll comprising a suitable frame, a suitable cover provided at its meeting edge portion with clips it and means mounted in the roll to draw said meeting edges together by circumferential movement, substantially as shown. y

WALTER KNOWLES TROTMAN; 

